* {
    padding: 0%;
    margin: 0%;
}

.li {
    text-decoration: none;
}

#zb {
    line-height: 4em;
}

.cd {
    width: 24%;
    height: auto;
    float: left;
    background-color: black;
    /* border: solid; */
    padding: 2em 0 2em 0;
}

.sp {
    position: absolute;
    left: 370px;
    width: 75%;
    height: auto;
    float: right;
    margin-right: 13px;
    /* margin-top: 1em; */
    /* border: solid; */
    display: none;
    /* opacity: 0; */
}

/* .yp{
    opacity: 0;
} */

.xz {
    width: 100%;
    height: 10%;
    color: white;
}

.xz:hover .sp{
    display: block;
    
}

.lb {
    margin-left: 2em;
    font-weight: 500;
}

.jt {
    float: right;
    height: 10%;
    width: 10%;
    font-weight: 800;
    color: white;
}

.xz:hover {
    background-color: #FF6700;
}


.yk {
    width: 25%;
    float: left;
    margin-top: 1em;
    color: black;
}

.sb {
    float: right;
    margin-top: 10px;
    /* margin-right: 1em; */
}

#div {
    position: absolute;
    top: 720px;
}

.shangping {
    width: 100%;
    height: 500px;
    position: absolute;
    top: 750px;
}

.yige1 {
    width: 20%;
    height: 300px;
    position: absolute;
    /* top: 800px; */
    left: 25px;
    text-align: center;
}

.yige2 {
    width: 20%;
    height: 300px;
    position: absolute;
    /* top: 800px; */
    left: 375px;
    text-align: center;
}

.yige3 {
    width: 20%;
    height: 300px;
    position: absolute;
    /* top: 800px; */
    left: 725px;
    text-align: center;
}

.yige4 {
    width: 20%;
    height: 300px;
    position: absolute;
    /* top: 800px; */
    left: 1050px;
    text-align: center;
}

.yige1:hover {
    width: 25%;
    height: 400px;
    transition: 1s;
    box-shadow: 0px 0px 10px #000;
    display: inline-block;
    z-index: 1000;
}

.yige2:hover {
    width: 25%;
    height: 400px;
    transition: 1s;
    box-shadow: 0px 0px 10px #000;
    display: inline-block;
    z-index: 1000;
}

.yige3:hover {
    width: 25%;
    height: 400px;
    transition: 1s;
    box-shadow: 0px 0px 10px #000;
    display: inline-block;
    z-index: 1000;
}

.yige4:hover {
    width: 25%;
    height: 400px;
    transition: 1s;
    box-shadow: 0px 0px 10px #000;
    display: inline-block;
    z-index: 1000;
}

.shangping img {
    width: 80%;
    height: 75%;
}